This page no longer updated from 31 October 2001. Latest version can be found at YaKhR-2 Core

Gross Mass: 180,000 kg. Empty Mass: 22,000 kg. Thrust (vac): 170,000 kgf. Isp: 470 sec. Burn time: 430 sec. Propellants: Nuclear/Ammonia Isp(sl): 430 sec. Diameter: 3.3 m. Span: 3.3 m. Length: 37.0 m. Country: Russia. No Engines: 1. YaRD OKB-456 Status: Study 1959. Comments: Engines in development by Bondayuk and Glushko. Alternate propellants ammonia only or ammonia/alcohol mixture. Four expansion nozzles fed by single reactor. Masses calculated based on given vehicle gross weight and performance.
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Last update 12 March 2001.
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© Mark Wade, 2001 .